Seco 74030781 Turning Insert CNGP432F-MF1-24 890 Carbide

Product Description

The SECO 74030781 is a solid carbide, uncoated turning insert in the CNGP-MF1 series, carrying industry standard number CNGP432F-MF1 and manufacturer grade 890. Designed for precision material removal, it features an 80-degree diamond insert shape, a 1/2-inch inscribed circle, and a 1/32-inch corner radius (0.0315 inches). The MF1 chip breaker geometry and sharp cutting edge style are engineered specifically for demanding cutting applications involving superalloys and titanium. With four cutting edges per insert and neutral hand orientation, this insert delivers consistent performance across boring, facing, and turning operations.

This insert is primarily rated for superalloys and titanium (ISO material code S), with secondary suitability for steel, cast iron, and non-ferrous materials (codes M, K, and N). It is suited for use in CNC lathes and turning centers in both production and job-shop environments. Licensed machinists and CNC operators working on aerospace, medical, and industrial components will find this insert appropriate for finishing and semi-finishing passes where sharp geometry and tight tolerances are required. The maximum depth of cut reaches 0.4764 inches, and the insert length is 0.5079 inches.

Key Features

• Solid carbide construction, uncoated (bright finish) for sharp-edge integrity on difficult materials
• MF1 chip breaker geometry optimized for superalloys and titanium cutting
• 80-degree diamond insert shape (shape code C) with negative rake for stability
• Four usable cutting edges per insert for extended tool life and cost efficiency
• Compatible with clamp, pin, and lever lock holding methods
• Meets ANSI and ISO standards; ISO code CNGG120408-MF1
• Multi-use application: boring, facing, and turning

Compatibility

Designed for use in toolholders and boring bars that accept CNGP-style inserts with clamp, pin, or lever lock holding methods. This insert is part of the CNGP-MF1 series and corresponds to ISO code CNGG120408-MF1. Verify toolholder specifications for insert size code 432 and hole diameter of 0.2028 inches before installation.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before seating or replacing inserts. Use the appropriate torx or hex key to the toolholder manufacturer's specified procedure when securing the clamping mechanism. Inspect the insert pocket and seating surface for chips or wear before installing a new insert to ensure proper seating and prevent edge chipping.